Interval (mathematics)

In elementary algebra, an interval is a set that contains every real number between two indicated numbers and possibly the two numbers themselves. Interval notation is the notation in which permitted values for a variable are expressed as ranging over a certain interval; "" is an example of the application of interval notation.

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In elementary algebra, an interval is a set that contains every real number between two indicated numbers and possibly the two numbers themselves. Interval notation is the notation in which permitted values for a variable are expressed as ranging over a certain interval; "" is an example of the application of interval notation.
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